marksman

n.

神枪手；〈美〉二等射手，轻兵器射手的最低等级；

复数：marksmen

1. My father was an expert marksman.
   我父亲曾是个神枪手。
2. I am a poor marksman.
   我不善射击。
3. The marksman aimed at the centre of the target.
   射手瞄准了靶心。

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Direct spectrophotometric determination of alpha-amylase activity in salive, with p-nitrophenyl alpha-maltoside as substrate
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System and method for simultaneously unwinding multiple rolls of material
Intraperitoneal 131I- and 111In-791T/36 monoclonal antibody in recurrent ovarian cancer: imaging and biodistribution.
System and method for unwinding tissue webs
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